Lubricator valve



June 19, 1934. 1 R. KERNS, 1,963,663

LUBRICATOR VALVE Original Filed Sept. 25, 1930 INVENTOR Lennard R'R'dnns AT ORNEYS Patented June 19, 1934 v Q- -um PATENT oFF-Ica LUBBICATOR VALVE Leonard R. Kerns,-Battle Creek, Mich., assignor,

by mesne assignments, to The Farval Corporation, Cleveland, Ohio, a corporation of Ohio I Application September 25, 1930, Serial No. 484,333

Renewed January 10, 1934 8 Claims. (Cl. 184-7) The present invention pertains to a novel lubricator valve and consists of improvements in the devices disclosed in the copending applications of Leonard R. Kerns, Serial No. 341,960, led February 23, 1929 and Serial No. 363,536, led May 16,

These valves operate on the dual pressure-system and comprise a measuring chamber having intake and discharge passages cont-rolled by a l0 valve. The valve in turn is actuated by the charg' ing or iilling pressure to open the intake passage and obstruct the discharge passage and is shifted by pressure on the measured charge t'o open the discharge passage and obstruct the intake passage. During or preliminary to this shift, there is a possibility that some of the measured charge placed under pressure will be forced through the lintake port back into the feeding line before the valve moves to close this port, and to this extent the measured quantity designed to be delivered may be smaller than actually intended.

The principal object of the present invention is 4to overcome this diiloulty.4 and is accomplished essentially by the provision of a check valve in the intake passage leading to the measuring chamber. The valve is so constructed as to close instantly when pressure is applied upon the measured charge or in fact to maintain a closed position except when subjected to charging or filling pressure. Y

The invention is fully disclosed by way of example in the following description and in the accompanying drawing, in which- Figure 1 is a. sectional view of the valve in discharged position and prior to being filled;

Fig. 2 is an elevation partly in section, showing the position of parts during lling;

Fig. 3 is a similar view showing. the position ot parts during discharge;

tion in loading position;

Fig. 5 is a detail section of the check valve of Figures 1, 2 and 3; and

Fig. 6 is a detail section ofthe main valve.

Reference to these views will now be made by use of like characters which are employed to designate corresponding parts throughot.

'Ihevalve showninFigures 1,2and3co prises a body 1 having its upper end open and equipped with a cap or iitting 2 having an aperture 3 for connection to a pressureline` as will presently appear. In the valve body is formed a main or measuring chamber 4 of cylindrical format-ion lengthwise of the body, and beneath this chamberisasmallervalve chamherslyingm..

Fig. 4 is a similar view of a modied construcversely of the main chamber. The chambers are separated by a partition 6 formed with an intake port 'I and a pressure opening 8 connecting the chambers.

The chamber 5 is obviously drilled from one of 60 the walls of the body and .is there closed by a plug 9. Before applying the plug, a part 10 of an outlet passage is drilled in the blind end of the valve chamber but not entirely through the wall ofthe body. The principal outlet is a tapped hole 11 in 65 the bottom of the body and adapted for attachment to a bearing or other part to receive a measured quantity of uid in a manner already well known in the art. In order to connect the outlet to the passage 10, a hole 12 is drilled from the bot- 70 tom of the body to the port 10, and another hole 13 is drilled from the outlet l1 to thehole 12. The outer end of the hole 12 is then closed by a screw plug 14.

In the valve chamber is mounted a valve consisting of two parts or cup-shaped piston sections 15 and 16. The former, as shown in Figure 6, has a reduced vend 17 carrying a ber washer 18 adapted to seat against and close the' port 10. The reduced portion is of such length. that the larger portion is prevented from covering the pressure opening 8 for a purpose which will presently appear. The other part 16 is formed with a stud 19 adapted in one position to engage a stop pinv 20 extending inwardly from the plug 9. The part 85 16 is adapted to control the fluid communication between the port 7 and the intake 21 formed near the plug. Between the valve sections is a compressed spring 22 which tends to move the valve parts to their respective closing positionsshown in Figure 1 but which also permits the valve parts to selectively uncover the ports controlled thereby.

In the portv 'l is slidably mounted a check valve consisting of a movable member 23 having a sliding and non-obstructing t in the port and-carrying a suitable fiber washer 24 adapted to close a reduced lower end 7' of the port. A metal cup 25 is pressed into the upper end of the port and has a central aperture 26 formed by striking down ahumberfof tongues or lugs 27 which pre- 100 vent the member 23 from closing the aperture.

In the operation of the device, assuming that the parts are in the position shown in Figure 1, the valve is charged by forcing uid under pres-A sure into the intake 21. The pressure moves the valve section 16 to the position shown in Figure 2 where it opens the intake `port 7 to the inlet 21. The normal action of the spring 22 is to hold 1 the section 15 closed against the outlet port10 and this action is augmented considerably by no the compression of the spring on forcing the uid against the section 16, so that the outlet is positively and firmly closed during the loading operation. 'I'he charging pressure obviously lifts the valve member 23, so that the charging fluid may ow into the port 7", around the member 23, beneath the cup 25, through the port 26, and into the measuring chamberl 4 beneath a piston 28 slidable in the chamber. 'I'he filling process continues until the piston 28 reaches its upper limit, and the valve is now ready to be discharged.

Inorder to discharge the valve, pressure is relieved at the inlet 21 and applied to the opening 3. The relief of pressure at the inlet 21 permits the spring 22 to move the valve section 16 to stop pin 20 where it obstructs the intake port 7 with respect to the inlet. This obstruction, however,

is more definitely assured by pressure exerted upon the measured charge through the medium of the piston 28 exposed to the opening 3, whereupon the valve member 23 is instantly moved downward to close the port 7. The return of any portion of the measured charge to the intake during the discharging operation is thus definitely and positively avoided.

The pressure upon the measured charge is obviously communicated through the pressure opening 8 and against the larger portion of the valve section 15, whereupon this section is moved to the position shown in Figure 3 where it uncovers the outlet port 10. The measured fluid then travels under pressure through the ports 12 and 13 to the nal outlet 11.` When the pressure in the opening 3 is relieved the spring 22 returns the valve section 15 to the port 10, as shown in Figure l, wherein the device is in position to take another charge.

In the modification shown in Figure 4, a somewhat ditferent type of valve is used. A solid valve member 30 without springs is adapted in one position to obstruct the discharge lport 10 and open the intake port '7 and in another position to obstruct the intake port and open the discharge port. In both styles of valve, it will be seen that, by reason of the direct abutment of one end against the discharge port, the sealing of this port increases with the loading pressure.

Although specific embodiments of the invention have been illustrated and described it will be understood that various alterations in the details of construction may be made without departing from the scope of the invention, as indicated by the appended claims.

What I claim isz- 1. In a measuring valve, a body formed to provide a measuring chamber and a valve chamber with a partition therebetween, said partition having an intake port connecting said chambers, intake means to said valve chamber and outlet means from said measuring chamber, a two-part valve slidable in said valve chamber by pressures in said intake means and measuring chamber and having one part controlling said outlet means and the other part controlling said intake port, a spring between said parts tending normally to move them lto closing position, and a check valve mounted in said port and adapted to close in the direction from the measuring chamber to the valve chamber.

' 2. In a measuring valve, a body formed to provide a measuring chamber and a valve chamber with a partition therebetweemsaid partition having an intake port connecting said chambers, intake means to said valve chamber and outlet means from said measuring chamber, a two-part valve slidable in said valve chamber by pressures in said intake means and measuring chamber and having one part controlling said outlet means and the other part controlling said intake port, a spring between said parts tending normally to move them to closing position, and a check valve mounted in said port and adapted to close in the direction from the measuring chamber to the valve chamber, said partition having a pressure opening connectingsaid chambers, said valve being disposed between said opening and intake means whereby it is moved respectively in opposite directions by the pressures in said opening and intake means.

3. In a measuring valve, a body formed to provide a measuring chamber and a valve chamber with a partition therebetween, said partition having an intake port and a pressure opening connecting saidl chambers, intake means and outlet means connected to said valve chamber, a twopart valve slidable in said valve chamber by pressures in said intake means and measuring chamber and having one part exposed to said pressure opening and controlling said outlet means and the other part exposed to said intake means and controlling saidintake port, a spring between said 4parts tending normally to move them to closing position, and a check valve mounted in said port and adapted to close in the direction from the measuring chamber to the valve chamber.

4. In a measuring valve, a body formed to provide a measuring chamber and a valve chamber with a partition therebetween, said partition hav- .ing an intake port connecting said chambers, in-

take means to said valve chamber and outlet means from said measuring chamber and having a portion in axial alignment with said valve chamber and in communication therewith, a valve slidable in said valve chamber by pressures in said intake means and measuring chamber and adapted to control said port and having one end adapted to seat against said aligned portion of said outlet means, and a check valve mounted in said port and adapted to close in the direction from the measuring chamber to the valve chamber.

5. In a measuring valve, a body formed to provide a measuring chamber and a valve chamber with a partition therebetween, said partition having an intake port-connecting said chambers, intake means to said valve chamber and outlet means from said measuring chamber, a valve slidable in said valve chamber by pressures in said intake means and valve chamber and adapted to control flow through said port and outlet means, a piston slidable in said measuring chamber, said chamber having a iluid inlet for the introduction of fluid pressure to move said piston toward said outlet means, said fluid inlet and partition being disposed at opposite sides of said piston, and a check 'valve mounted in said port and adapted to close in the direction from the measuring chamber to the valve chamber.

6. In a measuring valve, a body formed to provide a measuring chamber and a valve chamber with a partition therebetween, said partition having an intake port connecting said chambers, intake means to said valve chamber and outlet means from said measuring chamber, a valve slidable in said valve chamber and adapted to control iiow through said port and outlet means, a piston slidable in said measuring chamber, said chamber having a fluid inlet for the introduction of fluid pressure to move said piston toward said outlet means, said fluid inlet and partition being disposed at opposite sides of said pistonfa check valve mounted in said port and adapted to close in the direction from the measuring chamber to the valve chamber, said partition having a pressure opening connecting said chambers, said valve being disposed between said opening and intake means whereby it is moved respectively in opposite directions by the pressures in said opening and intake means, and means preventing said Valve from covering said'pressure opening.

7. In a measuring valve, a body formed to provide a measuring chamber anda valve chamber with a partition therebetween, said partition having an intake port and a pressure opening connecting said chambers, intake means and outlet means connected to said valve chamber, a valve slidable in said valve chamber and adapted to selectively obstruct said intake port and -outlet means with respect to said intake means and pressure opening respectively, said valve being positioned between said opening and intake means, whereby it is moved in opposite directions respectively by the pressures in said opening and intake means, a piston slidable in said-measuring vchamber, said chamber having a uid inlet for the introduction of fluid pressure to move said'piston toward said outlet means, said fluid inlet and partition being disposed at opposite sides of said piston, a check valve mounted in said port and adapted to close in the direction from the measuring chamber to the valve chamber, and means -preventng said valve from covering said pressure opening.

8; Ina measuring valve, a body formed to provide a measuring chamber and a valve chamber with a partition therebetween, said partition having an intake port connecting said chambers, intake means to said Valve chamber and outlet means from said measuring chamber, a valve slidable in said valve chamber by pressures in said intake means and measuring chamber and adapted to control said port and outlet means, a piston slidable in said measuring chamber, said chamber having a fluid inlet for the introduction of fluid pressure to move said piston toward said outlet means, said uid inlet and partition being disposed at opposite sides of said piston, and a check valve mounted in said port and adapted to close the same by gravity and to be moved to an open position by pressure in the direction from said valve chamber to said measuring chamber.

LEONARD R. KERNS. 

